PLANET XGS3-24040 - Manual (Page 168)

11-34
The user can use this command to set the VLAN traffic allowed to passthrough the Trunk port; traffic
of VLANs not included are prohibited.
Example:
Set Trunk port to allow traffic of VLAN1, 3, 5-20.
Switch(config)#interface ethernet 1/5
Switch(Config-If-Ethernet1/5)#switchport mode trunk
Switch(Config-If-Ethernet1/5)#switchport trunk allowed vlan 1;3;5-20
Switch(Config-If-Ethernet1/5)#exit
11.1.23 switchport trunk native vlan
Command:
switchport trunk native vlan <vlan-id>
no switchport trunk native vlan
Function:
Set the PVID for Trunk port; the “no switchport trunk native vlan” command restores the default
setting.
Parameter:
<vlan-id> is the PVID for Trunk port.
Command mode:
Port Mode.
Default:
The default PVID of Trunk port is 1.
Usage Guide:
PVID concept is defined in 802.1Q. PVID in Trunk port is used to tag untagged frames. When a
untagged frame enters a Trunk port, the port will tag the untagged frame with the native PVID set
with this commands for VLAN forwarding.
Example:
Set the native VLAN for a Trunk port to 100.
Switch(config)#interface ethernet 1/5
Switch(Config-If-Ethernet1/5)#switchport mode trunk
Switch(Config-If-Ethernet1/5)#switchport trunk native vlan 100
Switch(Config-If-Ethernet1/5)#exit
11.1.24 vlan